ARCHIVED REPORTS_FIRST QUARTER 2012 STATUS SUMMARY REPORT

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TABLE3 SUMMARY OF HISTORICAL GROUNDWATER GAUGING AND LABORATORY ANALYTICAL DATA Former Tosco Bulk Terminal No.10013 3505 Nary Drive,Stockton,CA dpprosimate TOC C'on....dd Depth to Groundwater TPH-D Benzene Toluene EtM1ylbenzene 'Ibial Sylenes MTBE ME TAME TBA Methanol Ethanol SaleDt Well Elevntion Tmol Well :'Groundwater Elevation (per,) TPH-G(pg/L) (per) (pe/L) (PgL) (pc/L) (pg/L) DIPS(,V[_) (4920 (VWL) (LCL) (P82) (P�) Number mpae feetnbree De th ( p '-`(feet below (feet aboee MSL) (feet below ---TOC) MSL) TOC) EPA Method 8015M EPA Method 82606 MW-1 08/1]/8] 262 25 11038 -7,76 ND<1000 310 24 099 7.4 1vW-1 02102t8S 2.62 25 340 6.4 NDN.50 1.1 L5 MW-1 03/06/88 2.62 25 1039 417 - -- - - - - --- -- MW-1 04/1488 2.62 25 11.13 -851 - - _-- MW-1 06/0188 262 25 10.35 -273 240 35 35 ND<0.50 0.77 MW-1 02/1989 2062 25 130 ND 30 ND<0.50 NDm-50 ND<0.50 MW-1 09/1852 2.62 25 11.91 -9.29 ND<50 89 29 ND<0.50 ND<0.50 ND<0.50 - - - - - - - 10W-1 12/1152 2062 25 11.49 -8.87 ND<50 ND6D 1'/ ND<0.50 ND<0.50 ND<0.50 MW-1 03/0153 2.62 25 8.76 -6.14 ND<50 97 93 06 ND<050 D.5 MW-1 06/04/93 2.62 25 9]2 -7.10 ND<50 66 27 ND<0.50 ND<0.50 0.66 MW-I 092853 2062 25 11.29 -8.6] ND<50 ND60 ND<0.50 ND<0.50 ND<0.50 ND 30 MW-1 12/0253 2062 25 1129 4r67 ND<90 760 9 NDm.50 NDm.50 7.3 MW-1 03/0454 2.62 28 1006 -244 ND<50 57 26 0.52 ND�.50 ND<OSD MW-1 06/0354 2.62 25 10.56 -7.96 ND<50 ND<50 13 ND,030 NDN.50 ND<0.50 MW-1 092854 262 25 11.22 -8.60 JN�500 0 ND<50 29 ND�.50 ND<0.50 ND<0.50 MW-1 12/02 2.62 25 10.]3 -8.11 0 ND<50 N 50 NDm.50 ND<0.50 ND<0.5D MW-1 03/3155 2.62 25 8.15 -553 0 ND<50 L5 ND 50 NIX0.50 ND<05D MW-I 06/0255 262 25 9.73 -7.11 0 ND6O 0.6 NDN.SO ND10.50 ND<0.50 MW-I 11/0155 2062 25 11.50 -8.86 0 250 12 ND<L0 ND<L0 NDQ.O 800 MW-1 02/1456 2.62 25 10.21 -259 0 320 ND<2 ND6 ND<5 ND15 920 MW-I 05/1456 2.62 25 9.46 -6.84 0 650 ND�.50 ND MW-t 09/1056 2.62 25 90% -234 0 90 NDm.50 ND<1.0 ND<I0 ND<7.0 650 MW-1 11/2156 2.62 25 10.63 -801 0 7% ND 30 ND<IO ND<10 ND<IO 1100 MW-1 04/165] 262 25 SSO -6.18 00 1300 ND<0.80 ND<1.0 ND<I.0 ND<10 17W MW-1 08/0657 262 25 1020 -7.58 MW-1 08/0751 262 25 00 NDQ50 ND<0.50 ND<IO ND<I.0 ND<10 930 MW-I 01/2358 262 25 837 -5.75 00 1,300 ND<0.50 N1X10 N13<1.0 ND<10 1100 MW-I 07/1055 2.62 25 878 -6.16 100 N 50 NI lro 2.1 ND<10 72 - - - - -- - MW-1 09/1758 262 25 99'1 -7.35 00 6,800 N .5 N u ND<50 ND<5.0 Bloo MW-1 12/3055 262 25 10.00 -7.36 00 2900 ND<1.0 ND<IO ND<10 ND<1.0 2]008000MW-1 02/1659 262 25 9.25 -6.63 0 2500 M lr(i ND<L0 ND<1.0 ND<IO 31M MW-1 06/3059 2.62 25 9.]3 -].11 00 2300 ND<1.0 ND<L0 ND<LO ND<I.0 29MMW-1 082759 262 25 10.41 -2]9 00 ND<90 NIXI.O ND<I.0 N 1'0 ND<1.0 21M - MW-1 112359 262 25 10.69 -8.07 N 50 ND000 ND<03 ND<0.3 ND<0.3 ND<0.6 20M MW-1 02/19/00 2.62 25 9.61 -6.99 ND4W ND<50 ND<050 NDm30 NDN.50 NDm.5D 26W MWA 0426/00 2.62 25 10.12 -7.50 7<47 880 ND<0.50 1 D 0.50 N 0.50 ND<0.50 36M MW-1 0825/00 2.62 28 10.53 -7.91 ND<47 600 ND<0.50 ND<0.50 ND<0.50 N><0.50 15M ND O ND<20 N a MW-1 0925/00(m) 2.62 25 10.73 -8.11 250 MW-1 11/15/00 262 25 10.35 -7,73 ND<47 410 ND<0.50 1.8 0.58 2.31 1800 MW-1 01/17/01 262 25 1025 -263 1`11)<50 990 ND<0.80 ND A.50 NpW.80 ND<O.So 1620 MW-1 06/05/01 2.62 28 9.94 -232 2]00 ND<10 ND<L0 ND<to 240 Page 3 of33 ATC Pmject No.07575118 0888